Calling with  sub vamp looks very wrong. Do a vamp()

Same for the other call.

You are basically redefining the sub again.

Please use strict and warnings to catch such problems earlier.

(Untested b/c I'm on mobile)

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

update

The next issue will be that the 2 case can never be reached because you'll always die before in the first else .

Consider using elsif 

if ($choice==1) {
  ...
} elsif  ($choice==2) {
  ...
} else { 
  die "wrong choice $choice"
}

[download]

See perlsyn#Compound-Statements

In reply to Re: Using If/Else by LanX
in thread Using If/Else by Anonymous Monk

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